[new ssytemd] Use systemctl commands for shutdown/reboot

Signed-off-by: Pekka Lundstrom <pekka.lundstrom@jollamobile.com>
0.65.0
Merge branch 'master' into next
[systemd] Use systemctl commands for shutdown/reboot

Signed-off-by: Pekka Lundstrom <pekka.lundstrom@jollamobile.com>
version 0.65.0
Merge pull request #54 from plundstr/next

Next